import re

import bs4
import requests

pattern = re.compile(r'\d{4,6}')

resp = requests.get('https://www.yinsiduanxin.com/china-phone-number/verification-code-16713494705.html')
soup = bs4.BeautifulSoup(resp.text, 'html.parser')
# print(resp.text)
td = soup.select_one('body > div.container > div:nth-child(4) > div:nth-child(3) > div.main > div.layui-row > table > tbody > tr:nth-child(1) > td:nth-child(2)')
results = pattern.findall(td.text)
print(results[0])
